The disease disrupts France ahead of the biggest football match of the year on Sunday.
Now the Kingsley Coman is also deposed.
– We are taking all necessary precautions, says national team captain Didier Deschamps.
Dayot Upamecano and Adrien Rabiot both missed the World Cup semi-final match against Morocco on Wednesday night due to illness.
Kingsley Coman did not participate in the match either, and captain Didier Deschamps announced on Thursday that Koeman was ill.
Koeman also had a fever this morning, he said during a press conference.
Camel virus fears
Health experts around the world have warned about camel influenza, a respiratory infection caused by the Middle East respiratory syndrome coronavirus, in connection with the FIFA World Cup.
The Daily Mail writes that France is now concerned about the so-called camel virus.
We are taking all necessary precautions and trying to ensure that it does not spread. Viruses are, of course, contagious, says Didier Deschamps, and we must take precautions against them.
With flu-like symptoms
Another complaint that has been a hot (or cold) topic during the World Cup is air conditioning, which is widely used in hot climates.
It may also be the reason behind the disease problem in France.
– The temperature has dropped a little in Doha and the air conditioning is still working all the time. We have had some cases with flu-like symptoms, says Didier Deschamps.